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Pilot operation 5
The chapter will introduce the procedure of pilot operation, including checking
battery voltage, input and output connecting, other preparation working.
5.1 Relevant requirements
Before pilot operation, the installation conditions of the equipment shall be
examined thoroughly, in particular whether voltages at DC and AC ends are
consistent with inverter's requirements, and whether the polarity etc. are correct.
Inspect if the system connection meets requirements in relevant standards or
codes and if the system is grounded well.
CAUTION!
Before pilot operation, all switches at AC side and DC side
shall ensure to be cut off.
5.2 Inspection
5.2.1 Inverter inspection
Before power on the inverter, please carry out inspections as the following
procedures:
Procedure 1: Inspect inverter's installation and wiring conditions based on the
Installation Inspection List in Table 4-6;
Procedure 2: Ensure the AC&DC circuit breakers are cut off;
Procedure 3: Ensure the emergency button is available and woks normally.
5.2.2 Grid voltage inspection
Inspect whether the three phases of the inverter is correctively connected with
the three phase sequence of the grid.
Inspect whether the line voltage and frequency are within the prescribed range,
and record the value.
If possible, measure the phase THD (Total Harmonic Distortion), and inspect
the curve. If distortion is serious, the inverter may fail to operate.
CAUTION!
When connecting the load,make sure that the three-phase of
the load is corresponding to the three-phase of the
HPS50,otherwise it will cause the motor to reverse.
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